The K-9 film series, consists of buddy cop comedy film including one theatrical film, one made-for-television film, and two straight-to-home video films. The general plot centers around a hard-boiled police detective and the German Shepherd police dogs they have as their respective partner and the cases they work together to solve; with the spin-off TV movie, which was initially developed as a pilot episode for a television series before it was passed on, revolves around a police detective who is teamed up with a mechanically enhanced German Shepperd to solve a criminal investigation.